CN87216387U

CN87216387U - Automatic control air pressure fire water-supplying device

Info

Publication number: CN87216387U
Application number: CN 87216387
Authority: CN
Inventors: 张秋民; 黄跃东; 王少华
Original assignee: HEILONGJIANG WATER CONSERVANCY MACHINERY PLANT
Current assignee: HEILONGJIANG WATER CONSERVANCY MACHINERY PLANT
Priority date: 1987-12-11
Filing date: 1987-12-11
Publication date: 1988-11-16

Abstract

The utility model relates to an automatically controlled air pressure fire water-supplying device for initial extinguishment, which mainly comprises a buffer water tank, a water pump, a gas supplying pot, a pressure water storage pot, a pressure controller, a limiting valve, an electric cabinet, pipelines, etc. The utility model makes use of the open and the close of the water pump to endlessly supplement gas and water in the gas supplying pot to the pressure water storage pot so that the water supplying pressure of the pressure water storage pot is kept to meet the requirement of initial extinguishment all the time. The device achieves the purpose of safe extinguishment, replaces generally used high level water tanks or water towers at present, and simultaneously brings benefit for safe construction and construction cost saving.

Description

Automatic control air pressure fire water-supplying device

The utility model belongs to fire-fighting watering equipment.

The first arrival first attack of city high-rise building all adopts elevated tank or water tower water-feeding at present.Because the natural hydraulic pressure of elevated tank or water tower is low, water supply intensity is poor, adds by certain reason hydraulic pipeline and produces leakage, makes its pressure of supply water not satisfy the needs of elementary fire extinguishing far away.Moreover elevated tank must be arranged on the roofing of skyscraper, so not only brings difficulty to construction, and has increased construction costs.

The utility model is for solving above-mentioned deficiency, utilize the pressure water tank to replace elevated tank or water tower, the pressure of depended on pressure water tank makes normal phase of fire main of whole building be in the pressure of supply water of first arrival first attack, in case unlatching fire hydrant, pressure flow drop into fire extinguishing immediately.

Device provided by the utility model is made up of buffer tank 1, water pump 4, aeration valve 5, air supply tank 6, pressure water tank 7, electro connecting pressure gauge 8, pressure limiting valve 11, limit valve 12, pressure controller 9, electric cabinet 3 etc.

Main points of the present utility model are, a pressure water tank 7 is set in this device, and this pressure water tank is pressed first arrival first attack ground needs after installing, add a certain amount of water, inject the compressed air of certain pressure then with compressor.Under general situation, whole for a certain reason fire main produces and leaks, be directed at gas, water step-down and minimizing in the pressure water tank, when dropping to the pressure of qualification, enabling signal just takes place in electro connecting pressure gauge 8, by electric cabinet 3 water pump 4 is started, water is imported and exported 14 by air water and is entered pressure water tank 7 by gas shutoff valve 15 again by aeration valve 5, air supply tank 6, non-return valve 16.When the pressure of pressure water tank 7 was higher than qualification pressure, electro connecting pressure gauge 8 just sent signal again, water pump 4 autostops, and aeration valve 5 was opened with atmosphere and was communicated this moment.Because the horizontal level of the air supply tank 6 that is provided with is higher than the horizontal plane of buffer tank 1, under the effect of water level differential pressure, the water in the air supply tank 6 returns buffer tank 1 through water pump.This moment, air supply tank 6 was full of air under atmospheric effect.When the pressure of pressure water tank 7 was lower than the pressure of qualification once more, electro connecting pressure gauge 8 sent signal again, and water pump 4 is opened water supply again, and aeration valve 5 is closed automatically, and the pressure that supplies water by water pump 4 is pressed into the air in the air supply tank 6 in the pressure water tank 7.Like this along with the unlatching of water pump 4, close and constantly in pressure water tank 7, replenish gas, water, make this jar remain the needed pressure of supply water of first arrival first attack and the water yield.

The height of buffer tank 1 horizontal plane is to be controlled by Floating Ball Liquid Level relay 2.

Description of drawings:

Fig. 1 is an automatic pneumatic fire-fighting watering device scheme of installation;

Fig. 2 is the structure chart of air supply tank;

Fig. 3 is the structure chart of pressure water tank and gas shutoff valve.

Most preferred embodiment of the present utility model.At first welded columnar pressure water tank 7 with steel plate by Fig. 3, in manhole 8 enters jar, gas shutoff valve 15 usefulness screw threads are joined with gas, water entrance 14 then, and position and top one end position weld limit valve interface 20 and electro connecting pressure gauge interface 21 respectively in this jar one end.Press Fig. 2 again with columnar air supply tank 6 of steel plate welding, again with square buffer tank 1 of steel plate welding.The erecting bed that provides according to the user, buffer tank 1, pressure water tank 7, water pump 4, electric cabinet 3 are fixed respectively, then by shown in Figure 1 with air supply tank 6, non-return valve 16, gas shutoff valve 15, gate valve 13, limit valve 12, pressure limiting valve 11, pressure controller 9, electro connecting pressure gauge 8, link up with pipeline 17, again with Floating Ball Liquid Level relay 2, water pump 4, electro connecting pressure gauge 8, pressure controller 9, link up by automatically controlled circuit 18, connect fire hydrant 19 at last.

It is strong to the utlity model has extinguishing ability, can make uppermost storey at any time guarantee substantial water column more than 10 meters in any position; The infield is flexible; Reduce construction cost; The advantage such as easy to maintenance simple in structure. Except air supply tank 6, pressure water tank 7 and electric cabinet 3, all the other all adopt standard component. In addition, can be used for concentrating fire-fighting.

Claims

1, a kind of automatic pneumatic fire-fighting watering device that is used for first arrival first attack comprises parts such as buffer tank 1, electric cabinet 3, water pump 4, air supply tank 6, pressure water tank 7, pipeline 17, automatically controlled circuit 18.It is characterized in that this device is provided with a pressure water tank 7 that can satisfy the enough pressure of first arrival first attack needs.

2, device as claimed in claim 1 is characterized in that an end of described pressure water tank 7 has been installed the limit valve 12 that can control water level and can have been controlled the pressure limiting valve 11 that limits pressure.

3, device as claimed in claim 2, but it is characterized in that the top of described pressure water tank 7 installed the electro connecting pressure gauge 8 and the pressure controller 10 of automatic pressure control.

4, device as claimed in claim 3 is characterized in that one of below installation in the described pressure water tank 7 prevents that jar interior gas from entering the gas shutoff valve 15 of fire main.

5, device as claimed in claim 4 is characterized in that the gas, water entrance 14 places of described gas shutoff valve 15 belows is installed gate valve 13 and non-return valve 16.

6, device as claimed in claim 5 is characterized in that described non-return valve 14 and air supply tank 6 and aeration valve 5 link.

7, device as claimed in claim 6, but it is characterized in that an end of described air supply tank 6 directly communicates with the water pump 4 of amount of makeup water.